Bante Instruments DOscan10 Pocket Dissolved Oxygen Tester Owner's manual

Brand: Bante Instruments

Model: DOscan10 Pocket Dissolved Oxygen Tester

Type: Owner's manual

DOscan10 Pocket Dissolved Oxygen Tester

USER MANUAL

Bante Instruments Inc.

1 I DOscan10

Overview

Thank you for selecting the DOscan10 pocket dissolved oxygen tester.

This user manual provides a step-by-step guide to help you operate.

the tester, please carefully read the following instructions before use.

Installing the Batteries

1. Twist the connector collar counter clockwise, pull the connector.

away from the tester.

2. Insert two AAA alkaline batteries into the battery compartment,

note polarity.

3. Push the connector into the tester and twist the connector collar

clockwise until tight.

Keypad

Key

Function

• Press and hold the key to switch the tester on or off

• Lock or unlock measurement

• Exit the calibration, settings and return to the

dissolved oxygen measurement

• Start calibration

• Press and hold the key to enter the setup menu

• Select an option

• Confirm the calibration, settings or displayed option

Display

Icon

Description

When the battery voltage falls below the minimum

power requirements, the icon automatically

disappears

MEAS

Indicates that the tester is in the measurement mode

CAL

Indicates that the tester is in the calibration mode

SETUP

Indicates that the tester is in the setup mode

ATC

Indicates that the temperature compensation is enabled

Prior to Use

Filling the Electrolyte Solution

1.1 Take out the dissolved oxygen electrode from the carrying case.

Unscrew the membrane cap from the bottom of the electrode,

rinse the inside and outside with distilled water and blot dry.

1.2 Fill the membrane cap halfway with electrolyte solution.

1.3 Screw membrane cap back onto the electrode. Some electrolyte

solution will overflow during this process.

1.4 Check the electrode, ensure that no air bubbles are trapped in the

electrolyte solution and membrane is not creased or damaged.

Polarizing the Electrode

2.1 Insert the electrode connector into the connector socket on tester,

ensure that the connector is fully seated.

2.2 Press and hold the Meas key to switch on the tester and wait 10

minutes for the electrode to polarize.

Remove air bubbles

DOscan10 I 2

Setup Menu

The DOscan10 tester contains 8 menu items in the setup menu, the

following table describes the functions of each option.

Menu Item

Option and Description

Salinity Coefficient

Set the salinity compensation coefficient of sample.

0 to 35 g/L (default 0 g/L)

Pressure Coefficient

Set the barometric pressure coefficient according to

the local altitude (refer to page 3).

450 to 850 mmHg (default 760 mmHg)

Calibration Points

Set the number of calibration points.

1 point (default)

2 points

Measurement Unit

Set the default measurement unit.

mg/L

Milligrams per liter (default)

ppm

Parts per million

Percentage saturation

Degrees Celsius (default)

Degrees Fahrenheit

Temperature Calibration

Refer to page 4.

Reading ± 10°C

Reading ± 10° F

Auto-Hold

If enabled, the tester will automatically sense and

lock the measurement endpoint.

Enable

Disable (default)

Auto-Power Off

If enabled, the tester will automatically switch off

if no key is pressed within 8 minutes.

Enable

Disable (default)

Factory Reset

If enabled, all of the calibration values and current

settings will be deleted or reset to the factory

defaults, the tester must be recalibrated.

Enable

Disable (default)

Setting the Default Option

1. In the measurement mode, press and hold the Cal key to enter

the setup menu.

2. If necessary, press the Cal key again to select an option.

3. Press the Enter key, the tester saves the current option and moves

to the next menu item.

4. Repeat steps above until the tester returns to the measurement

mode.

• During the setting process, if you do not need to calibrate the

temperature, press the Enter key to skip the / or /

option.

• To exit the setup menu, press the Meas key.

• The table below describes the relationship between the altitude

and barometric pressure, make sure to set a compatible

parameter before the calibration or measurement.

Option

Menu item

3 I DOscan10

Table 1. Altitude and Barometric Pressure

Altitude (m)

kPa

mmHg

101.3

760

100

100.1

750

200

98.8

741

300

97.6

732

400

96.4

723

500

95.2

714

600

94.0

705

700

92.8

696

800

91.7

688

900

90.5

679

1000

89.4

671

1100

88.3

662

1200

87.2

654

1300

86.1

646

1400

85.0

638

1500

84.0

630

1600

82.9

622

1700

81.9

614

1800

80.9

607

1900

79.9

599

2000

78.9

592

2100

77.9

584

2200

76.9

577

2300

76.0

570

2400

75.0

563

2500

74.1

556

2600

73.2

549

2700

72.3

542

2800

71.4

536

2900

70.5

529

3000

69.6

522

3100

68.7

515

3200

67.9

509

3300

67.0

502

3400

66.2

496

3500

65.4

490

3600

64.6

484

Dissolved Oxygen Calibration

The DOscan10 tester allows 1 or 2 points dissolved oxygen calibration.

If you have selected the single point calibration in the setup menu,

we recommend that you perform a 100% saturation calibration in the.

air-saturated water. If the 2 points calibration is selected, the zero.

oxygen solution needs to be used.

During the calibration and measurement, the temperature sensor on

electrode must be immersed in the sample solution completely, the

solution should keep 0.3 m/s of minimum flow rate to avoid oxygen

starvation at the membrane.

Single Point Calibration - 100% Saturation

Ensure that you have selected 1 point calibration in the setup menu.

1.1 Press the Cal key, the display shows 100%/ CAL1.

1.2 Hold the dissolved oxygen electrode in the air at 100% relative

humidity or place the electrode into the air-saturated water for

about 10 minutes. Press the Enter key to begin the calibration.

1.3 When the reading has stabilized, the tester will show and

return to the measurement mode.

Temperature sensor

DOscan10 I 4

2 Point Calibration

Ensure that you have selected 2 points calibration in the setup menu.

2.1 Repeat steps 1.1 and 1.2 above. When the first calibration point.

is completed, the display will show 0%/ CAL2, the tester prompts.

you to continue with second point calibration.

2.2 Place the dissolved oxygen electrode into the zero oxygen solution.

for about 10 minutes, press the Enter key to begin the calibration.

When the reading has stabilized, the tester will show .

Calibration is completed.

• Performing a percentage saturation calibration will calibrate the

corresponding mg/L or ppm concentration value simultaneously.

• To exit the calibration without saving calibrated values, press the

Meas key.

Temperature Calibration

1. Press and hold the Cal key to enter the setup menu.

2. Press the Enter key until the display shows / or / .

3. Press the Cal key, the tester enters the temperature calibration

mode.

4. Place the electrode into a solution with a known accurate

temperature and wait for the measurement to stabilize.

5. Press the Cal key to modify the temperature value.

6. Press the Enter key to save and press the Meas key to return

to the measurement mode.

Measurement

The DOscan10 tester can be used to measure the water, wastewater,

brine and other liquids. If your sample is seawater or water containing

large amounts of salt, make sure to set the salinity coefficient before

measurement. Some gas and steam such as chloride, sulfur dioxide,

sulfureted hydrogen and carbon dioxide can permeate the membrane

via diffusion. Their existence will influence the measurements. If the

sample contains solvent, grease, sulfide and alga, the membrane will

be damaged or eroded.

Preparation of Zero Oxygen Solution

Dissolve 500 mg of the sodium sulfate (Na2SO3) reagent and a small

amount of cobalt (II) chloride hexahydrate (CoCl2 • 6H2O) in the 250 ml

distilled water, mix the solution until reagent is completely dissolved.

Tester Specifications

Model

DOscan10

Dissolved Oxygen

Range

0.0 to 20.0 mg/L

Resolution

0.1 mg/L

Accuracy

± 0.5 mg/L

% Saturation

Range

0.0 to 200.0%

Resolution

0.1%

Accuracy

± 2.0%

Other Specifications

Calibration Point

1 or 2 points

Temperature Compensation

0 to 40° C (32 to 104° F), automatic

Barometric Pressure Correction

450 to 850 mmHg, manual

Salinity Correction

0 to 35 g/L, manual

Operating Temperature

0 to 50° C (32 to 122° F)

Storage Temperature

0 to 60° C (32 to 140° F)

Relative Humidity

< 80% (non-condensing)

IP Rating

IP54

Display

LCD, 21 × 21 mm (0.82 × 0.82 in.)

Power Requirements

2 × 1.5V AAA alkaline batteries

Auto-Off

8 minutes after last key pressed

Dimensions

175 (L) × 40 (Ø ) mm (6.89 × 1.57 in.)

Weight

100 g (3.5 oz.)

Troubleshooting

Fault

Cause and Corrective Action

Screen shows

Dissolved oxygen electrode does not connect to the

tester or measured value is out of range.

Drifting erratic

readings

Check whether the membrane cap is contaminated

or the electrolyte solution is depleted.

Screen shows

Electrode is broken.

Replace the dissolved oxygen electrode.

5 I DOscan10

1. Set the barometric pressure and salinity coefficient in the setup

menu.

2. Rinse the electrode with distilled water.

3. Place the electrode into the sample solution and stir gently. Wait

for the measurement to stabilize and record the reading.

• During the measurement, if the display shows ---- indicating the

measurement exceeds the range, remove the electrode from the

sample solution immediately.

• If the option is enabled in the setup menu, the tester will

automatically lock the measurement endpoint and show HOLD

icon. Press the Meas key to resume measuring.

Electrode Maintenance

• Rinse the electrode thoroughly with distilled water after use.

• Do not touch the membrane and always keep it is clean and wet.

• If you do not use the electrode for long periods, screw off the

membrane cap, rinse the electrode anode, cathode, membrane

cap with distilled water and blot dry. Install the electrode and

store dry.

Appendix

Optional Accessories

Order Code

Description

DO100

Dissolved oxygen electrode, range: 0 to 20 mg/L

DO-MEM

Membrane cap, 2 PCS/set

DO-ES

Electrolyte solution, 30 ml

Preparation of Air-Saturated Water

Use an air-pump to blow air into distilled water at least 1 hour, while

stirring the solution.

Cathode

Anode

The information in this document is subject to change without notice.

Disposal

This product is required to comply with the European Union’s Waste

Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC and

may not be disposed of in domestic waste. Please dispose of product

in accordance with local regulations at the collecting point specified

for electrical and electronic equipment.

Warranty

The warranty period for tester is one year from the date of shipment.

Above warranty does not cover the electrode and electrolyte solution.

Out of warranty products will be repaired on a charged basis.

The warranty on your tester shall not apply to defects resulting from:

• Improper or inadequate maintenance by customer

• Unauthorized modification or misuse

• Operation outside of the environment specifications of the

products.

For more information, please contact the supplier.

Office: 4715 Castlewood St., Sugar land, TX 77479, USA

Tel: (+1) 346-762-7358

E-mail: banteinstruments@yahoo.com

Factory: F3, Building 2, No.2185, Laifang Rd., Shanghai 201615, China

Tel: (+86) 21-6404-1598

E-mail: banteinstrument@hotmail.com

 www.bante-china.com

Bante Instruments DOscan10 Pocket Dissolved Oxygen Tester Owner's manual

Brand: Bante Instruments

Model: DOscan10 Pocket Dissolved Oxygen Tester

Type: Owner's manual

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Bante Instruments DOscan10 Pocket Dissolved Oxygen Tester Owner's manual

Bante Instruments DOscan10 Pocket Dissolved Oxygen Tester Owner's manual

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